JPS5829089Y2 - Bakyu - whiplash - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for folding a sheet-like material (hereinafter referred to as a web) of breathable paper, nonwoven fabric, etc. horizontally at high speed and continuously, and in particular to a vacuum adjustment device thereof. .

Conventionally, this type of vacuum equipment required changing the suction position depending on the processing speed and the web being processed, but because the equipment could not be adjusted, Sairyo's products had the highest operating efficiency. I wasn't getting it.

The present invention allows the adsorption position to be adjusted, so that the best product can be obtained with the highest operating efficiency.

Embodiments of the present invention will be described in detail below with reference to the drawings, but first, the overall manner in which the present invention is installed will be briefly described.

In FIG. 1, a web 2L22 is guided into the apparatus by paper rolls 1 and 2.

Feed rolls 3, 4 and 5, 6 each form a pair to continuously feed webs 21, 22 into the apparatus.

7.8 is a slitter knife, and 9.11 is a slitter roll, each of which forms a pair to continuously cut the webs 21 and 22 in the traveling direction.

Cuckroll 11.12 each has 3 cutter knives 13
The web 2L22 is cut at right angles to the traveling direction.

14.15 is a folding roll. Fold the 9 nibs 21, 22 in a zigzag pattern using negative pressure.

The vacuum device of the present invention is located on the end face of the folding roll 14,15.

Also. These folding rolls 14 and 15 also work as anobyl rolls when they work in an open position with the katsuta rolls, respectively.

Cutter roll 11.12 and folding roll 14.
15 each! They have a 60° deviation from each other in direction.

The position where the cutter knife 13 on the cutter rolls 11 and 12 and the anobile part (blade receiver part) on the folding rolls 14 and 15 come into contact is called the "cutting position", and the continuous webs 21 and 22 until then are cut at this position. The individual webs cut in the transverse direction as described above are discontinuous, although the cut ends are in contact with each other.

next. The part where the two folding rolls 14 and 15 come into contact is called the "folding start position", and from this point the two webs overlap and one of the rolls 14 or 1
5 and is carried to the "folding position" where it comes into contact with the holding par 16 or 17.

Holding par 16.17 is folding roll 14
．． This is for peeling off the webs 21 and 22 adsorbed by the rollers 15 from the roll surface.

The frame 20 is for supporting each of the rolls and devices described above.

and 23 is a folded web.

Next, the vacuum adjustment device of the present invention will be explained.

The folding rolls 14 and 15 are only out of phase (with a deviation of <60° as described above).

Since the essential structure is the same, the convenience roll 14 will be explained below.

In FIG. 2, the folding roll 14 is attached to a frame 20' via a bearing 24 and a bearing case 25 so as to be rotatable.

This folding roll 14 has a transverse direction (
(perpendicular to the direction of travel) K suction holes 14b for sucking the cut individual webs 21 onto the roll surface and sending them to the folding start position; and folding holes for sucking the individual webs 21 and 22 together and transporting them to the folding position. Suction hole 14a
Three trees each are arranged alternately (fallen trees may be used as long as there is one or more of each tree).

Since the positions where the suction holes 14a and 14b act and the suction forces are different, two types of vacuum positions are required.

In other words, in the present invention, two parts are supplied separately.
The sheets of web 21, 22 are cut on each roll 14, 15, and then carried in the cut state by suction to the folding start position, where the two sheets are combined into one, and then folded by another suction. 2 to 14.15 rolls each
Seed suction holes are required, so 2 for each roll.
It is necessary to provide the openings of the seed suction holes at different positions.

Therefore, the vacuum ring 31 changes the direction of the vacuum.

The suction hole 31a for folding is the vacuum link 3
10 The suction hole 31 penetrates in the longitudinal direction and is used for feeding.
b does not pass through but opens to the outer circumferential surface.

Each vacuum box 28, 32 leads to a suction source.

The vacuum box 28 is supported by a box holder 26 fixed to the frame, and is supported by a compression spring 2
9 presses the vacuum position adjustment plate 30 against the vacuum ring 31.

The vacuum ring 31 is bolted to the side of the folding roll 14 and rotates together with the folding roll 14.

Therefore, the vacuum box 28 is positioned using a sliding key 27 so that it cannot be turned.

Note that there is a gap between the vacuum box 28 and the journal portion of the folding roll 14, so that the rotational force of the folding roll 140 is not transmitted to the vacuum box 2B.

Further, the vacuum position adjustment plate 30 is also fixed with a turnbuckle 34 so that it cannot be rotated.

Note that this turnbuckle 34 has a right-handed thread on one side and a left-handed thread on the other.

Since the rod ends 33 and 35 have right-handed threads and left-handed threads, respectively, the vacuum position adjustment plate can be moved by turning the turnbuckle 34.

Both sides of the vacuum position adjustment plate 300 and the vacuum box 28 and vacuum ring 310 in contact with it
The surface is finished with high precision.

This is to prevent air leaks.

The suction hole 31a for folding is suctioned in a range that communicates with the arcuate opening of the vacuum position adjustment plate 300, which is indicated by the angle α in FIG. It is released after passing β (becomes atmospheric pressure).

The vacuum box 32 is pressed against the vacuum ring 31 by a compression spring 36 via an adjustment screw 37 from a post 38 fixed to the frame 20'.

This vacuum box 32 is also fixed by a turnbuckle 34 whose vacuum position can be adjusted.

The suction hole 31b for feeding is sucked when it communicates with the groove-shaped opening (broken line) of the vacuum box 32 in the range indicated by the angle γ in FIG. 4, and is released after the angle δ (
atmospheric pressure).

Invented Haccum Box 28. The vacuum adjustment plate 30 and the vacuum box 32 not only connect the suction source and the suction holes 31a and 31b, but also connect the vacuum ring 3
By rotating the N folding roll 14), it also functions as a suction on/off valve.

That is, the suction hole 31a. 31b is turned on when it communicates with the aforementioned arc-shaped opening α and groove-shaped opening γ, respectively, and is turned off in the range of angles β and δ beyond this, and otherwise released to atmospheric pressure. Therefore, the suction and release of the web are performed extremely reliably, and the relative positional relationship of the arc angles α and γ of these suction ranges with respect to the rolls 14 and 15 can be adjusted by operating the turnbuckle 34.
It can be freely adjusted by rotating the box 32 coaxially with the axis of the rolls 14.degree. 15.

Thus, the present invention has great practical effects in that the suction position can be freely adjusted to produce the best product with the highest operating efficiency.

[Brief explanation of drawings]

FIG. 1 is a schematic elevational view of the entire folding device implementing the present invention, FIG. 2 is a cross-sectional view showing the vacuum adjusting device of the present invention, and FIG. 3 is an elevational view of the vacuum adjusting device for folding. FIG. 4 is an elevational view of the vacuum regulating device for feeding. Explanation of main symbols: 14, 15... Folding roll, 14a... Suction hole for folding. 14b... Suction hole for feeding, 28...
...Vacuum box, 30...Vacuum position adjustment plate, 31...Vacuum ring-31a...Suction hole for folding, 31
b... Suction hole for feeding, 32...
...Vacuum ring.

Claims (1)

[Scope of utility model registration request] After two separately supplied webs are cut on top of each other, they are sucked and conveyed to the folding start position, where they come into contact with each other and the two cut webs are combined into one sheet. It has two folding rolls 14 and 15 that can be rotated once and adsorbed to either one of the rolls, and each roll 14,15 is adsorbed to the surface of each web cut perpendicularly to the feeding direction and removed from the cutting position. Suction holes 14b and 15b for transporting the web to the folding start position, and suction hole 1 for sucking the two cut webs together and transporting them from the folding start position to the folding position.
4a and 15a are formed alternately along the roll length direction and in the roll rotation direction, and the folding suction holes 14a and 15a are opened as suction holes 31a on the end face of the roll, and the feeding suction holes 14b, 15b is opened as a suction hole 31b on the peripheral surface of the roll end, and the suction hole 31a
A vacuum position adjustment plate 30 having an opening that communicates over the arc angle α is brought into airtight sliding contact with the end face of each of the rolls, and although it does not rotate with the rolls, it is attached so that it can be rotated on the roll axis, and the suction holes A vacuum box 32 having an opening communicating over an arc angle γ of 31b is brought into airtight sliding contact with the open end surface of each roll,
A vacuum adjustment device for a pair of suction and folding rolls, characterized in that it does not rotate together with the rolls, but is installed so that its rotation can be adjusted on the axis of the rolls.